Acceleration, Force and Friction

A force

• is a push or pull

• is measured in newtons

• can cause an object to speed up, slow down, or change direction.

• All of them

The net force is:

• A force acting on an object.
• Balanced
• Unbalanced
• A combination of two or more forces acting on an object.

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Forces acting in opposite directions are:

• Added
• Subtracted
• Divided
• Multiplied

Weight is a measure of the gravitational force on an object and it is expressed in newtons (N).

• False

• True

What tool do you use to measure mass?

• thermometer

• bathroom scale

• balance

• measuring cup

The measure of the amount of matter in an object is its

• mass

• velocity

• acceleration

• force

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What is the SI unit for force?

• grams

• liters

• kilograms

• Newtons

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Which of the following is the same on the moon and on Earth?

• gravity

• weight

• mass

• friction

If Sam pushes a desk North with a force of 5 Newtons, and his friend helps him by pulling the desk North with a force of 10 Newtons, what is the net force on the desk?

• 50 Newtons N

• 5 Newtons N

• 15 Newtons N

• 2 Newtons N

When forces of an object produce a net force of 0 N, the forces are

• unbalanced

• rotating

• balanced

• all of the above

Tags

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